Rule for type-slugs.



H. A. SPURGEON, A. T. HUNT & W."G. BAKER.

RULE FOR TYPE SLUGS.

APPLICATION FILED JULY 20. I914.

Patented May 18, 1915.

Witnesses THE NORRIS PETERS 50.. FHOTO-LITHQ, WASHINGTON. O, C

pnrrnn s'ra'rns rarnivr @FFIQE Q HARRY A. SPURGEON, ALVIN T. HUNT, ANDWILLIAM G. BAKER, OF INDIANAPOLIS,

INDIANA.

RULE FOR TYPE-SLUGS.

iasasee.

Patented May 18, 1915.

Application filed July 20, 1914. Serial No. 851,929.

To all whom it may concern:

Be it known that we, HARRY A. SPURGEON, ALVIN T. HUNT, and WILLIAM G.BAKER,

citizens of the United States, residing at' slug forms and its object isto provide a table rule of a conformation that will enable it to belocked to the body of the slugs below the quad high surface thereof, tobe easily inserted and withdrawn and providing a portion projectingbeyond such surface and having a printing edge level with the typefaces.

With this object in view, our invention is embodied in preferable formin the rule hereinafter described and illustrated in the accompanyingdrawings.

In these drawings, Figure 1 is a top plan view of a form showing theimproved rule applied thereto, Fig. 2, an end view of the form showing atype slug in side elevation and several rules in place, Fig. 3, anenlarged vertical section ofthe rule, Fig. 4, an enlarged side inelevation of part of a rule and Fig. 5, an enlarged detail perspectiveof part of a slug and a rule.

Referring to the drawings, 1 indicates a cast type slug of a tabulartype form arranged for printing a table of columns of printed matter.For printing a vertical ruling line, of a table, it is usual to employ arule extending from top to bottom of the form, between the ends of aslug. Our invention provides a construction of this rule that may befirmly locked in the body of the type slug, and it is formed with a fiatbase 2, inwardly and upwardly inclined sides 3, extending from the baseat acute angles thereto and a more acute rule edge forming upper portionprovided by the side faces 4:, l, which meet the side faces 3 at acuteangles. The base 2 and side faces 3 thus form a truncated pyramid whichconstltutes the slug engaging portion of the rule, and the height of thesides 3 is made equal to the depth of a slot 5 also preferably oftruncated pyramidal shape which is formed in the body of the type slugbelow the level of the top of the body proper of the slug.

:lhe slug from the body to this level is des- Ignated as quad high andthis upper face may therefore be called the quad high surface or merelyquad surface. It is denoted by the numeral 6. The printing charactersproject beyond this surface. The side faces project upwardly to a heightlevel with the type faces of the slugs, thus prov ding the rule edge forprinting the ruling line. These side faces are shown as meeting so as toform a comparatively sharp edge, but of course a blunt or flat contactsurface may be provided by changing the angles of the side faces I.

In the use of the rule, a plurality of type slugs having the slots 5 inalineinent, are assembled and the rule inserted endwise at one end ofthe line of slots. The slug engaging portion of the rule formed by thebase 1 and inclined sides 2 will fit against the base and walls of theseslots, and will be firmly locked against movement upward at a rightangle to the face of the form owing to the inclination of the slotwalls, and the greater width of the base of the rule as compared withthe upper part of the slot engaging portion, and this locking engagementWill thus be obtained within the body of the slug itself, therebyavoiding the neoessity of additional detachable rule holding means or ofprojections formed on the slugs above the quad surface. The rule edgeforming portion projects freely above the quad surface to type highlevel, leaving a clear space between the rule edge and the adjoiningcolumns of printing characters, and enabling such characters to beclosely and properly spaced.

'Ihese table rules are customarily formed of brass and are necessarilyof small width in cross section relative to their length. In the form oftable rule now employed, which rule is supported on the quad surface andhence must be of slight thickness and low hei ht and its sides ofsubstantiall uniform inclination thoughout to obtain the required sharpprinting edge and also a gripping surface for the locking means on theslugs, the rule is pliable and easily bent.

In our invention, owing to the greater angle of the side of the lowerpart of the rule, and the engagement therewith of the body of the slugbelow the quad surface, the rule is of sufiicient lateral thickness toprovide a stiff body which may be readily inserted in the slots andpushed through the same without bending. Having thus described ourinvention, What We claim is:

1. A rule for type slugs having a lowerface and a rule edge-formingupper portion having a side face extending angularly to said face ofsaid lower portion, substantially as described.

2. A rule for type slugs having a lower type slug engaging portion whichis adapted to extend below the quad surface and which has a base andsides inclined to the base, said rule having an upper portion adapted toextend above the quad surface and having side faces angularly joiningthe sides of said lower portion, substantially as described.

3; A rule for type slugs having a portion adapted to engage thevbody ofa type slug below the quad surface only and having a side face inclinedinwardly from the base upwardly, to engage a slot wall of the slug,

and said rule having an upper portion providing a rule edge andadaptedto extend above the quad surface to the level of the type face, saidupper portion having a side face meeting the side of the lower portionat an acute angle, substantially as described.

.4. A rule fortype slugs having a lower type slug engaging portion inthe form of a described.

In witness whereof, we have hereunto set.

our hands and seals at Indianapolis, Indiana, this 16th day of July, A.1)., nineteen hundred and fourteen.

HARRY A. SPURGEON. ALVIN. T. HUNT. WILLIAM G. BAKER.

Witnesses: 7 '11. P. DooLITTLn,

A. C. Rion.

L. s. [1 s.]

7 Copies of this patent maybe obtained for five cents each, byaddressing the Commissioner of Patents,

WashingtomD. 03- 7 a

